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Use a hash chain when deduplicating tile layer keys and values

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This commit is contained in:
Erica Fischer
2024-12-04 14:23:45 -08:00
parent 1d81935cd5
commit 95ef343762
5 changed files with 49 additions and 23 deletions
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mvt.hpp
+2 -2
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@@ -200,8 +200,8 @@ struct mvt_layer {
void tag(mvt_feature &feature, std::string const &key, mvt_value const &value);
// For tracking the key-value constants already used in this layer
std::vector<ssize_t> key_dedup = std::vector<ssize_t>(65536, -1);
std::vector<ssize_t> value_dedup = std::vector<ssize_t>(65536, -1);
std::vector<std::vector<ssize_t>> key_dedup = std::vector<std::vector<ssize_t>>(500, std::vector<ssize_t>());
std::vector<std::vector<ssize_t>> value_dedup = std::vector<std::vector<ssize_t>>(500, std::vector<ssize_t>());
int detail() const {
return std::round(std::log(extent) / std::log(2));